Sorry...stupid question about tire wear
09-02-2004, 10:10 AM
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Sorry...stupid question about tire wear
I came home and drove over some dry mud and could tell what portion of my tire tread actually came into contact with the ground.
The front tires seem to contact the ground across the entire tread width.
The rear tires however seem to contact the ground across the entire tread width except for a little part (~1/2") of the outer tread...does this have anything to do with the wheels being angled in...or does mounting a 255/40/18 on an 8" rim width cause this...or both? just curious...is it ok/normal?
thanks in advance
The front tires seem to contact the ground across the entire tread width.
The rear tires however seem to contact the ground across the entire tread width except for a little part (~1/2") of the outer tread...does this have anything to do with the wheels being angled in...or does mounting a 255/40/18 on an 8" rim width cause this...or both? just curious...is it ok/normal?
thanks in advance
09-02-2004, 11:46 AM
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It's normal. The back tires are slightly tilted in at the top (positive camber), which helps the handling; when you turn right, the car tilts to the left, and now the back left tire is closer to vertical and thus has more contact with the ground.
If both back tires were both vertical at rest, when you turn the outside tire would actually lift up a bit on the inside, giving you less contact with the ground. The downside to all of this is that the tire will wear more on the inside edge.
The front tires aren't tilted, because that significantly affects how the car steers and increases wear on the tires that usually wear faster.
If both back tires were both vertical at rest, when you turn the outside tire would actually lift up a bit on the inside, giving you less contact with the ground. The downside to all of this is that the tire will wear more on the inside edge.
The front tires aren't tilted, because that significantly affects how the car steers and increases wear on the tires that usually wear faster.
09-02-2004, 01:51 PM
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Originally posted by 510dat
It's normal. The back tires are slightly tilted in at the top (positive camber), which helps the handling; when you turn right, the car tilts to the left, and now the back left tire is closer to vertical and thus has more contact with the ground.
If both back tires were both vertical at rest, when you turn the outside tire would actually lift up a bit on the inside, giving you less contact with the ground. The downside to all of this is that the tire will wear more on the inside edge.
The front tires aren't tilted, because that significantly affects how the car steers and increases wear on the tires that usually wear faster.
It's normal. The back tires are slightly tilted in at the top (positive camber), which helps the handling; when you turn right, the car tilts to the left, and now the back left tire is closer to vertical and thus has more contact with the ground.
If both back tires were both vertical at rest, when you turn the outside tire would actually lift up a bit on the inside, giving you less contact with the ground. The downside to all of this is that the tire will wear more on the inside edge.
The front tires aren't tilted, because that significantly affects how the car steers and increases wear on the tires that usually wear faster.
09-03-2004, 08:34 AM
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Originally posted by 510dat
It's normal. The back tires are slightly tilted in at the top (positive camber), which helps the handling; when you turn right, the car tilts to the left, and now the back left tire is closer to vertical and thus has more contact with the ground.
If both back tires were both vertical at rest, when you turn the outside tire would actually lift up a bit on the inside, giving you less contact with the ground. The downside to all of this is that the tire will wear more on the inside edge.
The front tires aren't tilted, because that significantly affects how the car steers and increases wear on the tires that usually wear faster.
It's normal. The back tires are slightly tilted in at the top (positive camber), which helps the handling; when you turn right, the car tilts to the left, and now the back left tire is closer to vertical and thus has more contact with the ground.
If both back tires were both vertical at rest, when you turn the outside tire would actually lift up a bit on the inside, giving you less contact with the ground. The downside to all of this is that the tire will wear more on the inside edge.
The front tires aren't tilted, because that significantly affects how the car steers and increases wear on the tires that usually wear faster.
Tilted in at the top (Tilted towards the inside of the car)= Negative camber
Tilted out at the top (outside of the car) =Postive camber
Front of tire points outwards = Toe out
Front of tire points inwards = toe in
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